EP1052151A2 - Pare-chocs de véhicules automobiles - Google Patents

Pare-chocs de véhicules automobiles Download PDF

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Publication number
EP1052151A2
EP1052151A2 EP00107958A EP00107958A EP1052151A2 EP 1052151 A2 EP1052151 A2 EP 1052151A2 EP 00107958 A EP00107958 A EP 00107958A EP 00107958 A EP00107958 A EP 00107958A EP 1052151 A2 EP1052151 A2 EP 1052151A2
Authority
EP
European Patent Office
Prior art keywords
bumper
spoiler
bumper according
movable
motor vehicle
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP00107958A
Other languages
German (de)
English (en)
Other versions
EP1052151A3 (fr
EP1052151B1 (fr
Inventor
Gerhard Zogalla
Ruprecht Dipl.-Ing. Sinnhuber
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Volkswagen AG
Original Assignee
Volkswagen AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Volkswagen AG filed Critical Volkswagen AG
Publication of EP1052151A2 publication Critical patent/EP1052151A2/fr
Publication of EP1052151A3 publication Critical patent/EP1052151A3/fr
Application granted granted Critical
Publication of EP1052151B1 publication Critical patent/EP1052151B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D35/00—Vehicle bodies characterised by streamlining
    • B62D35/005—Front spoilers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
    • B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
    • B60R19/04—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects formed from more than one section in a side-by-side arrangement
    • B60R19/12—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects formed from more than one section in a side-by-side arrangement vertically spaced
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
    • B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
    • B60R19/04—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects formed from more than one section in a side-by-side arrangement
    • B60R19/14—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects formed from more than one section in a side-by-side arrangement having folding parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
    • B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
    • B60R19/24—Arrangements for mounting bumpers on vehicles
    • B60R19/38—Arrangements for mounting bumpers on vehicles adjustably or movably mounted, e.g. horizontally displaceable for securing a space between parked vehicles
    • B60R19/40—Arrangements for mounting bumpers on vehicles adjustably or movably mounted, e.g. horizontally displaceable for securing a space between parked vehicles in the direction of an obstacle before a collision, or extending during driving of the vehicle, i.e. to increase the energy absorption capacity of the bumper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/34—Protecting non-occupants of a vehicle, e.g. pedestrians
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
    • Y02T10/82—Elements for improving aerodynamics

Definitions

  • the invention relates to a bumper for a motor vehicle, in particular for a Passenger cars.
  • a pedestrian If a pedestrian is hit head-on by a passenger car, he comes usually first touches the bumper of the vehicle at leg height because this forms the foremost part of the vehicle. If this bumper is relatively narrow, i.e. only has a small height, such as Example known from older vehicles, and / or at the level of the knee Pedestrian is located, as is the case with off-road vehicles due to the larger size Ground clearance is usually the case, and an impact usually occurs immediately Buckling of the pedestrian legs in the knee joint. This allows the feet and What happens to the pedestrian lower leg under the front of the vehicle a subsequent rollover, especially at lower vehicle speeds favored by the pedestrian.
  • Passenger cars with newer registration often have a so-called "soft nose", i.e. its front section is formed by an integrated component, which is a bumper and comprises a front spoiler arranged below, the front end face of the spoiler often extends the vertical front face of the bumper extends down to the in the event of an impact on a pedestrian leg Increase impact area and prevent it from kinking.
  • the bottom edge the spoiler is usually at a distance of 200 mm or less from that Road surface, which prevents with relatively high security that the legs of a pedestrian caught by the car and thus this even among the Car can get. In such a car, however, driving already leads from unpaved forest and field paths with humps or bumps to considerable Trouble.
  • the invention has for its object a bumper change the type mentioned at the outset so that the criteria of the planned Leg impactors can be met without the off-road capability of the vehicle significantly affect.
  • At least part of the Bumper and / or at least part of one below the bumper arranged spoiler is movable in relation to a body of the motor vehicle and is connected to a controllable drive device in order to change the Geometry of the bumper and / or spoiler by moving the movable Bumper and / or spoiler part depending on driving and / or pre-crash conditions to enable.
  • the invention is based on the idea that the mobility of the bumper or of its lower part, possibly in conjunction with a front spoiler or its lower part, or by the mobility of one Front spoiler arranged below the bumper with the help of the drive device Set different vehicle geometries on the front of the motor vehicle let that depend on a particular driving or pre-crash situation purposefully either better pedestrian protection or better Ensure off-road capability.
  • the bumpers according to the invention can be used both in so-called off-road vehicles Improvement of pedestrian protection as well as for car station wagons or limousines Improvement of off-road capability is provided, while also being the freedom of design when designing the front of the vehicles equipped with it enlarge
  • the movement of the bumper and / or spoiler part is preferably between two End positions, a so-called “extended” end position, in which a wide downward, vertical or very steeply inclined front face of the Bumper and / or spoiler the criteria of the planned leg impactor are met can, and a so-called “retracted” end position in which the Off-road capability by increasing the overhang angle or of distance between the bumper or spoiler and the road surface is improved.
  • the movement of the bumper and / or spoiler part when retracting or extending preferably horizontal movement, i.e. a movement parallel to one Road level, with a horizontal distance between the center of the axle when entering and the front end face of the movable lower bumper and / or spoiler part is reduced, thereby increasing the overhang angle, while the Extend the front face of the movable bumper and / or spoiler part over a front end face of a bumper and / or Part of the spoiler or essentially until it is aligned with it in the direction of travel is moved forward in order to lower or enlarge the impact area.
  • the drive device is preferably an electric motor or a Hydraulic cylinder formed, but can in principle also by a pneumatic cylinder be formed or connectable to the drive of the motor vehicle via a clutch be a part of its driving energy to shift the bumper and / or Spoiler part to use.
  • the drive device In normal driving operation one with the movable bumper and / or spoiler part equipped motor vehicle, the drive device is actuated Appropriately via an operating switch in the interior of the car, the driver after Demand can be operated, for example, around the movable bumper and / or Pulling in the spoiler section before driving off-road or driving out in city traffic.
  • the actuation can, however, also be dependent on automatic of other settings on the vehicle or of the respective driving conditions take place, for example by simultaneously switching from two-wheel drive to Four-wheel drive retracted the bumper and / or spoiler part or with switching extended from all-wheel drive to two-wheel drive, or depending on the speed, at low speeds below 15 km / h and preferably below 10 km / h, which are common when driving in very uneven terrain, is drawn in while it extends automatically at higher speeds.
  • the vehicle can also continue with one or can be equipped with several inclination sensors and / or vibration sensors cause the bumper and / or spoiler part to retract or extend, if the sum of the angles of inclination or the vertical vibration amplitudes of the Motor vehicle over a predetermined short period of time due to larger Uneven floors exceed a specified value or are only slightly uneven Roadway drops below this value again.
  • it makes sense to get the driver through a display inside the car to indicate the position of the bumper and / or Spoiler part takes, and also with automatic activation of the drive device to provide an operating switch, the automatic operation of which can be overridden.
  • pre-crash sensors can also be used to control the drive device.
  • the entire front bumper, possibly together with a front spoiler or a soft nose of the vehicle formed by these can be designed to be extendable.
  • the drive device is expediently provided by a pyrotechnic drive device formed.
  • Extend may be linked to another condition, for example a higher one Speed than 10 km / h or the switching position of a gear selector in Two wheel drive.
  • the passenger car 2 shown in FIGS. 1a and 1b has a front one Bumper 4, which consists of two parts, an upper part 6, which is rigid on the Body of the car 2 is attached, and a lower part 8, which is parallel to one Move the level road surface 10 in relation to the upper part 6 and the body leaves.
  • the upper bumper part 6 is constructed like conventional car bumpers and rigid on the Fixed body of the car and is therefore not described in detail.
  • the lower The bumper part 8 has a U-shaped outline in plan view, the two of which are parallel Leg 12 on the sides of the car 2 below the bent backwards Side parts 14 of the upper bumper part 6 and in front of the front wheels 16 in the direction of travel are arranged while its yoke 18 (Fig. 1c) the front ends of the two Leg 12 connects and below the upper bumper part 6 transverse to Direction of travel extends over the entire width of the car 2.
  • the two legs 12 of the lower bumper part 8 are designed to be telescopic and each house a hydraulic telescopic cylinder 20, the parallel one Point piston rods 22 forward and at their front end with yoke 18 are connected.
  • the cylinder tubes 24 of the two telescopic cylinders 20 are supported its rear end against a body-mounted abutment, so that the yoke 18th by extending the piston rods 22 forward into an extended front End position (Fig. 1b) or by pulling the piston rods 22 back into a retracted rear end position (Fig. 1a) can be moved.
  • the yoke 18 In the front end position, the yoke 18 is slightly behind with its front face in front over the front end of the upper bumper part 6, so that one in the way obstacle of the car, such as a pedestrian, first from the vertical front end face of the lower bumper part 8 is hit.
  • the height, in which the lower bumper part 8 is attached to the car is chosen so that the Middle of its front face between 250 and 300 mm above the Road surface 10 is located, and thus approximately at the level of the center of gravity Lower leg of an adult pedestrian.
  • a pressure relief valve is provided which opens into a tank when an impact occurs of the car 2 on an obstacle, e.g. a pedestrian, one of them against the Driving direction exerted on the yoke 18 of the lower bumper part 8 predetermined value, for example 10 or 20 kp.
  • This will make the lower one Bumper part 8 pushed back when this force is exceeded, for one a small part of the impact energy is absorbed without deformation of the bumper 4, and on the other hand the contact surface of the front end face of the entire bumper 4 on a vertical obstacle, such as the pedestrian legs, is increased, which reduces the surface pressures.
  • the application of hydraulic fluid to the hydraulic cylinders 20 for extending or retracting of the lower bumper part 8 takes place via a hydraulic motor which is operated by a Control switch on the instrument panel of the motor vehicle (not shown) in Is put into operation.
  • the lower bumper part 8 is preferably located in the Normal state in its extended end position and is, for example, in front of one Off-road driving retracted by operating the control switch.
  • the entire front section below the front edge of the hood 26 of a so-called soft nose 28 is formed, which essentially consists of a rigid with the Body connected deformable front bumper 30 and one below the Bumper 30 arranged, integrated in the bumper 30 front spoiler 32nd consists.
  • the front spoiler 32 consists essentially of a rigid with the body connected rear part 34, a front part 36, which is by means of an electric motor and a rack and pinion gear (not shown) with respect to the bumper 30 between an extended lower end position shown in Fig. 2a and in Fig. 2b shown retracted upper end position in the direction of arrows A vertically and can be moved, and a flexible middle part 38 to bridge the Distance between the front and rear parts 36, 34.
  • the overhang angle ⁇ can be increased considerably, which between the Road surface 10 and an inclined plane E is formed, which is different from the Contact points of the front wheels 16 as a tangential plane to the lowest point of the
  • the underside of the soft nose 28 extends, in each case the car 2 shown Lower edge of the front end face of the swiveling front spoiler 42.
  • the Einund The spoiler 42 is extended here with a drive similar to that commercially available motorized swiveling sunroofs.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Body Structure For Vehicles (AREA)
  • Treatment Of Sludge (AREA)
EP00107958A 1999-05-08 2000-04-17 Pare-chocs de véhicules automobiles Expired - Lifetime EP1052151B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19921480A DE19921480A1 (de) 1999-05-08 1999-05-08 Kraftfahrzeugstoßfänger
DE19921480 1999-05-08

Publications (3)

Publication Number Publication Date
EP1052151A2 true EP1052151A2 (fr) 2000-11-15
EP1052151A3 EP1052151A3 (fr) 2000-12-20
EP1052151B1 EP1052151B1 (fr) 2003-10-08

Family

ID=7907569

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00107958A Expired - Lifetime EP1052151B1 (fr) 1999-05-08 2000-04-17 Pare-chocs de véhicules automobiles

Country Status (3)

Country Link
EP (1) EP1052151B1 (fr)
AT (1) ATE251562T1 (fr)
DE (2) DE19921480A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2388341A (en) * 2002-05-07 2003-11-12 Autoliv Dev Auxiliary front bumper lowerable on collision sensing
EP1215093A3 (fr) * 2000-12-15 2003-12-10 Ford Global Technologies, Inc. Système de pare-chocs pour véhicule
EP1405783A1 (fr) * 2002-10-02 2004-04-07 Compagnie Plastic Omnium Pare-chocs de véhicule comportant un spoiler articulé entre trois positions d'équilibre stable
FR2847215A1 (fr) 2002-11-15 2004-05-21 Faurecia Ind Ensemble pour partie avant d'un vehicule automobile, comportant un spoiler, et vehicule ainsi equipe
WO2007003328A1 (fr) * 2005-06-30 2007-01-11 Daimlerchrysler Ag Vehicule a moteur equipe d'un dispositif anti-encastrement
US9714059B2 (en) * 2015-12-04 2017-07-25 GM Global Technology Operations LLC Active splitter for a motor vehicle
ITUA20163139A1 (it) * 2016-05-04 2017-11-04 Iveco Spa Dispositivo di sicurezza anti-investimento per un veicolo

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10316847A1 (de) * 2003-04-11 2004-11-11 Dr.Ing.H.C. F. Porsche Ag Unterfahrschutzeinrichtung und Verfahren zum Betreiben einer Unterfahrschutzeinrichtung
EP1692016A2 (fr) 2003-12-09 2006-08-23 Decoma (Germany) GmbH Element structurel d'un assemblage pare-chocs d'un vehicule
DE102004059747B4 (de) * 2004-12-11 2016-02-11 Volkswagen Ag Sicherheitseinrichtung, insbesondere Fußgängerschutzeinrichtung, für ein Kraftfahrzeug, insbesondere für ein Geländefahrzeug
DE102005008029A1 (de) * 2005-02-22 2006-08-24 Daimlerchrysler Ag Anordnung eines Schutzelements an einem Kraftwagenbug und/oder einem Kraftwagenheck, Schutzelement und Kraftwagen
DE102009021281A1 (de) * 2009-05-14 2010-11-18 GM Global Technology Operations, Inc., Detroit Stoßfängeranordnung für ein Kraftfahrzeug
DE102014113696A1 (de) * 2014-09-23 2016-03-24 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Bugteil für ein Kraftfahrzeug
US9821754B2 (en) * 2016-02-26 2017-11-21 Ford Global Technologies, Llc Spring assist lock and release lower leg front-end stiffener
FR3100219B1 (fr) * 2019-08-26 2023-01-13 Flex N Gate France Dispositif de gestion des flux d’air et véhicule comprenant un tel dispositif
DE102020131792B3 (de) 2020-12-01 2021-12-09 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Linearaktuator

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2100817A1 (fr) * 1971-01-08 1972-07-27
US3992047A (en) * 1973-10-17 1976-11-16 Daimler-Benz Aktiengesellschaft Motor actuated shiftable supplemental bumper
US4264093A (en) * 1979-04-05 1981-04-28 Long Alvin L Bumper extension for heavy vehicles
US4518183A (en) * 1984-02-27 1985-05-21 Lee Joseph K Extendible safety impact bags for vehicles
US5810427A (en) * 1996-03-18 1998-09-22 Hartmann; Albrecht Motor vehicle
GB2336811A (en) * 1998-04-25 1999-11-03 Rover Group A vehicle front impact arrangement

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3051041C2 (fr) * 1980-02-01 1990-03-01 Daimler-Benz Aktiengesellschaft, 7000 Stuttgart, De
JPS58191672A (ja) * 1982-05-06 1983-11-08 Aisin Seiki Co Ltd エアバランスパネル昇降装置
DE4239120C2 (de) * 1992-11-20 1994-12-22 Albrecht Dr Ing Hartmann Kompaktfahrzeug
DE19508039A1 (de) * 1995-03-07 1996-09-12 Bayerische Motoren Werke Ag Fahrzeug mit einem am Bug beweglich angeordneten Spoiler
GB2321624A (en) * 1997-01-27 1998-08-05 Lin Pac Mouldings Bumper assembly with forwardly displaceable lower portion

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2100817A1 (fr) * 1971-01-08 1972-07-27
US3992047A (en) * 1973-10-17 1976-11-16 Daimler-Benz Aktiengesellschaft Motor actuated shiftable supplemental bumper
US4264093A (en) * 1979-04-05 1981-04-28 Long Alvin L Bumper extension for heavy vehicles
US4518183A (en) * 1984-02-27 1985-05-21 Lee Joseph K Extendible safety impact bags for vehicles
US5810427A (en) * 1996-03-18 1998-09-22 Hartmann; Albrecht Motor vehicle
GB2336811A (en) * 1998-04-25 1999-11-03 Rover Group A vehicle front impact arrangement

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1215093A3 (fr) * 2000-12-15 2003-12-10 Ford Global Technologies, Inc. Système de pare-chocs pour véhicule
GB2388341A (en) * 2002-05-07 2003-11-12 Autoliv Dev Auxiliary front bumper lowerable on collision sensing
GB2388341B (en) * 2002-05-07 2005-08-24 Autoliv Dev Improvements in or relating to a safety device
EP1405783A1 (fr) * 2002-10-02 2004-04-07 Compagnie Plastic Omnium Pare-chocs de véhicule comportant un spoiler articulé entre trois positions d'équilibre stable
FR2845334A1 (fr) * 2002-10-02 2004-04-09 Plastic Omnium Cie Pare-chocs de vehicule comportant un spoiler articule entre trois positions d'equilibre stable
US6886883B2 (en) 2002-10-02 2005-05-03 Compagnie Plastic Omnium Vehicle bumper including a spoiler hinged between three positions of stable equilibrium
FR2847215A1 (fr) 2002-11-15 2004-05-21 Faurecia Ind Ensemble pour partie avant d'un vehicule automobile, comportant un spoiler, et vehicule ainsi equipe
WO2007003328A1 (fr) * 2005-06-30 2007-01-11 Daimlerchrysler Ag Vehicule a moteur equipe d'un dispositif anti-encastrement
US9714059B2 (en) * 2015-12-04 2017-07-25 GM Global Technology Operations LLC Active splitter for a motor vehicle
ITUA20163139A1 (it) * 2016-05-04 2017-11-04 Iveco Spa Dispositivo di sicurezza anti-investimento per un veicolo
WO2017191595A1 (fr) * 2016-05-04 2017-11-09 Iveco S.P.A. Dispositif de sécurité anti-marche pour véhicule

Also Published As

Publication number Publication date
ATE251562T1 (de) 2003-10-15
DE19921480A1 (de) 2000-11-09
EP1052151A3 (fr) 2000-12-20
DE50003970D1 (de) 2003-11-13
EP1052151B1 (fr) 2003-10-08

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